Sod is supposed to look lush and green...when it is fresh and installed within 24 hours of being cut from the farm. Was your sitting on pallets for any length of time? Sometimes the edges can dry out and that's what it looks like. If the sod is Kentucky bluegrass it will recover. If the sod is fescue, it will probably recover.

Here are a couple more pictures to help

Thanks Texas-weed for the info. I know I'm way past late in rolling it,but my work schedule and the weather just didn't wan't to cooperate. Now we didn't get anywhere near as much rain as you did this weekend, but I had to lay the last part of this in the dark in a downpour Sunday night. Then Monday had to pull 8hrs mandatory OT, so this morning was my first opp to git 'r done. The rain has kept it pretty moist along with what I've been doing, so hopefully it'll be OK. And auteck, if that is Zoysia and my yard turns out anywhere close to yours, I'll be the talk of my neighborhood! There's only one guy who's yard is close to that, but he doesn't do organics, do you? How old is it? Did you DIY? Either way it's an awesome yard. Congrats! Off-topic question... how did you place your pic directly into your post w/o linking? Just curious.

Floratam. It would be Floratab if the guy had allergies that day. You can save it. What happened is it got a fungal disease. There is nothing you can do about anything until you get rid of the disease. If you pulled up the old sod and put down fresh new sod, the new sod would be dead in 3 weeks. Ask me how I know that!! Summer time in south FL is too hot for chemical fungicides, not that I would ever recommend one to anyone. The only practical solution, believe it or not, is whole ground corn meal applied at 20 pounds per 1,000 square feet over the entire lawn. When corn meal decomposes it attracts a predatory fungus called Trichoderma (try koh DER mah). It will take 3 weeks to see the improvement but by then the grass should be coming back strong, especially in the full sun. Floratam does much better in full sun than in shade, but it will be fine once the disease is over and done. If you want to continue with corn meal just to be sure you got it, that's fine. You can use corn meal any day, or every day, of the year. It won't hurt a thing. It provides a reasonable amount of fertilizer factor if you continually apply it. You should notice the yard turning deep green and all the new grass will be deep green. Here's what you should have done instead of watering 30 minutes per day. You should have watered at most, 10 minutes, 3 times per day, for 3 weeks or until the roots knit down into the underlying soil/sand. That might seem like 30 minutes per day, but when you spread it out it gives the moisture time to soak in and also evaporate in between. Now that you're where you are, you need to back waaaay off on watering frequency. Ideally this time of year you would be watering 1 inch, all at one time, per week. Measure 1 inch by putting cat food or tuna cans in the yard and turning on the sprinklers. Time how long it takes to fill the cans and that is your watering time from now on. Then shut off the water for a week or as long as the grass will go without looking wilty. If it looks wilted before a full week, then water it again immediately. It will develop deeper roots when you water like this and allow the soil/sand to dry out at the surface. Those deep roots will allow the grass to go longer and longer between watering. If it rains, don't water until the grass needs it. Rain is different from irrigation water and seems to allow the grass to go much longer than you would let it go from irrigation. By the way my oscillator sprinkler takes 8 hours to fill the cans, so be prepared for anything. High flow undergrounds systems can apply an inch in 20 minutes. Also you should be mowing at the mower's highest setting. There is never a reason to mow Floratam lower than the highest setting. If your mower can stand it you can go 2 weeks between mowing. The problem there is Floratam grows extremely dense and requires a lot of horsepower to get through it. Weekly should work, but even that might be too dense to get through for lower powered mowers and most electric mowers. Floratam was developed by the University of Florida and Texas A&M University. Texas A&M goes by TAMU here in Texas, so the name of the grass came from blending all that together.